Answers

Subtract 3/81 from 10/7

1^st number: 1 3/7, 2^nd number: 3/81

10/7 - 3/81 is 263/189.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 81 is 567
   
   Next, find the equivalent fraction of both fractional numbers with denominator 567
2. For the 1st fraction, since 7 × 81 = 567,
   10/7 = 10 × 81/7 × 81 = 810/567
3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
   3/81 = 3 × 7/81 × 7 = 21/567
4. Subtract the two like fractions:
   810/567 - 21/567 = 810 - 21/567 = 789/567
5. After reducing the fraction, the answer is 263/189
6. In mixed form: 174/189

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ²⁰/₇-³/₈₁ ¹⁰/₇-⁶/₈₁ ¹⁰/₁₄-³/₈₁ ³⁰/₇-³/₈₁ ¹⁰/₇-⁹/₈₁ ¹⁰/₂₁-³/₈₁ ⁵⁰/₇-³/₈₁ ¹⁰/₇-¹⁵/₈₁ ¹⁰/₃₅-³/₈₁ ⁷⁰/₇-³/₈₁ ¹⁰/₇-²¹/₈₁ ¹⁰/₄₉-³/₈₁

Subtract Fractions Calculator